Jewett



(No Model.) v I I J; J. GRAVES; r HOT WATER HEATER.

No. 423.759. Patented'Mar'. 18, 1 90.

in the county of Erie and State of New York," have invented certain newand usefullmp the front casing or shell being removed. Fig.

number of hollow sections A, through which tical legs 2 abutting, andarebolted together To all whom itmay concern:

' horizontal section on the line 00 a: of Fig. 3,

with the exception of the upper or top one,

UNITED STATES PATENT OFFICE.

JEWETT &' COMPANY, OF SAME PLACE.

HOT-WATE'R HEATER.

SPECIFICATION forming part of Lettersilatent No. 423,759, dated Marchis, 1890.-

Application filed December 23,1889. Serial n. 334,704. (mater) Be itknown that 1, JOHN J. GRAVES, a citizen of the United States, residingat Buffalo,

provements in Hot-Water Heaters, of which the following is aspecification.

My invention relates to hot-water heaters adapted particularly for,house-heating purposes; and it consists of a heater of thelnovelconstruction to be hereinafter pointed out, and constructed ofseparablesections which of themselves contain features of novelty,

In the drawings, Figure 1 is a perspective view of, aheater embodying myinvention,

2 is a longitudinal section of the heater. Fig. 3 1s a transversesection thereof. Fig. ,4 is a and Fig. 5 is a horizontal section on theline 'y y of Fig. 3.

The boiler or Water-heater-is made up of a the water circulates and isheated. As these sections are duplicates one of another, but one need bedescribed. It consists of two hollow legs 1 and 2, one longer than theother, and connected with each other by a number of pipes 3, therebyleaving the openings 4, which, when the sections are assembled to form aboiler, become the 'fire-flues for. the passage'of the products ofcombustion. The pipes 3 are by preference of the shape in cross-sectionshown in Fig. 2-that is tosay,

which is oval, they are flat on their upper and curved on their lowerfaces. This shape makes the bottoms or floors of the tines 4 flat, sothat they may be easily raked or cleaned out, while the other Wallsthereof are curved, and thus present extended surfaces to theheatedproducts of combustion.

It will be observed that the cross-pipes 3 are of the same width as thewater-legs 2 and 3,which insures that when the legs are brought togetherend to end, continuous fines 4 are formed; These Sections are arrangedopposite to each other in pairs, their shorter vertogether end to end toform the boiler or 1 JOHN J. canvas, or BUFFALO, NEW YORK, AssIeNoR TOSHERMAN s.

heater, the cross-pipes3 abutting and the openings 4 registering, and.the ends of the heater are closed by bonnets or casings, so as toproperly direct the products of combustion through the zigzag flueformed by the openings/1 and the casing-walls and plates. 1

The series of sections A are united by long bolts 6 and '7, passingthrough lugs or flanges, or preferably, as shown, through the water- .13of suitable construction, provided with a grate b, so that there isformed a fire-chamber tubes 13 andl t, at the lower and upperpor- 11above such grate between the long waterlegs 1 and below the lower series'of pipes 3 of the sections. The ends of this fire-chamber are closed byfire-brick work 8 inside the casing walls, 9, which close the ends oftheheater. The shell or casing walls are formed with or have secured tothem the -deflectingplates 10, which extend from the said walls acrossthe ends of the heater and opposite the pipes 3. The preferredarrangement of the deflecting-plates 10 is shown in Fig. 2, where theyare shown riveted or bolted to the casing or shell walls 9, and inclinethence slightly downward to the opposite ends of the alternate series ofpipes 3, against which they may abut, so that there is formed a sinuousor zigzag passage for the products of combustion from thecombustion-chamber to the exitflue 12. p

17 is a large door in the casing-wall at the front end of the heater,givingaccess to the lines to permit their being cleaned.

The waterspaces of the adjacent sections on each side of the centralline of the heater .of the sections A being provided with both an inletand an outlet port. Such ports as'are not used for the pipe-connectionsof the heater are closed in the usual manner.

Any number of double sections may be con uected to form a heater, fromthree to seven being the usual number for ordinary house- 'heatersi Aheater made as described is simple in construction and easily setup, andby reason ofthe very extended flue-surface, which throughout its entirelength is surrounded by awater-space, is economical in use. Should anysection become worn out or be found otherwise defective, it can be'easily replaced at small cost of time, labor, and money, as noparticular fitting is required, the sections being duplicates of eachother.

. Without limiting myself to the precise construction and arrangement ofparts shown, what I claim is- 1. A hot-water-heate'r section consistingof the hollow water-legs of unequal length connec'tcd by two or morecross-pipes of a width equal to the width of the water-legs, whereby,whenthe sections are placed end to end, continuous flues are formedbetween the crosspipes, substantially as described.

. 2. A hot-water heaterconsisting of a series of hollow water sections,each having a long and a short leg connected by cross-pipes, thesections being united in pairs, with their shorter legs abutting, andsuch pairs being connected end to end with their cross-pipes abutting toform draft-fiues, through the secand a short leg connected bycross-pipes, the sections being united in pairs, with their shorter legsabutting, and suchpairs connected end to end, a base on which the unitedsections are placed, and a fire-grate between the longer legs of thesection, substantially as described.

4. A hot-water heater consisting, of hollow watersections united end toend and provided with openings through them to form draftfiues incombination with end casing-wallshaving' deflecting-plates arrangedadjacent to the opposite ends of the adjacent pipes which separate thedraft-passages, substantially as and for thepurpo'se specified.

5. A hot-'water'heater composed of sections united side by side in pairsand such pairs united end to end, and casings or walls. closing the endsof the sections, substantially as described.

In testimony whereofI'afliX my signature in presence of two witnesses.

JOHN J. GRAVES.

Witnesses: V i

R0131. H. MONTGOMERY, RoBrr. L. CANEY.

